Exile is the brother of death.

What it means
Being cut off from home and community is a loss almost as total as death. The proverb places separation from one's people and homeland beside death itself.
Amazigh · North Africa
Source and context
From: Amazigh, North Africa
Source: Berber/Amazigh oral-tradition proverb collections (special-dictionary.com, "26 Famous Berber Proverbs")

The meaning given here is our own reading. Other interpretations exist.